Spark-arrester.



srnRK-ARRESTER.y

. f To all whom it lmay camera.'v

Be it known thatl, WILLLrM A. Goocn, a citizen of the United States, residing at Lawrenceburg, in the `county of Lawrence, State of Tennessee, have invented certain new and useful Improvements in- S ark Arresters; and Ido hereby dec-lare the o llowing to be a full, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use the same. The presen-t. invention has reference to spark-arresters, and it aims to provide an exceedingly simple, inexpensive, andeiiective device designed for attachment to the smokestack of a locomotive and adapted to check the passage of live s arks and cinders therethrough and divert t em into a sup lemental ipe, whence they are discharge( into the re-box at the yrear of the locomotive. The invention further resides in the provision in connection with the above-men-- tloned discharge-pipe, of an exhaust fan, by means of wluc 1- the' sparks and cinders are ositively drawn? thereinto from the main aflle carried by the arrester, and are blown through said ipe.

Witch the a ove and other ends in view the invention consistsjn the particular details of construction, and in the combination and arrangement of par/ts all as hereinafter fully described, specically claimed, and illustrated in the accompanying drawings, in which like parts are designated by corresponding reference numerals in the several views.

Of the said dmwings, Figure 1 is a fragmental side elevation of a locomotive equipped with the improved spark-arrester, the casing of the latter being partly broken away to illustrate the main baille. Fig. 2 is an enlarged detail view of the arrester with the casing thereof and the main baille broken away, to show the supplemental baffles. Fig. 3 is a longitudinal vertical section throu gli Fig, 2. Fig. 4 is a transverse section on the line 4f-4 of Fig.

Referring more particularly to the drawings, the numeral 5 generally designates the locomotive, whose smoke-stack 6 has secured thereto, towards its upper end, the arrester 7, into which latter the stack extends a slightl distance, as shown.

The arrester comprises an outer shell or casing 8, of flusso-conical shape, which, at its lower end, is connected with a series of pipes 9 communicating with a main discharge pipe I I l Specification'of Letters Patent I' implication filed July 17,

Patented Aug. 4, .1908.. 1907. serial Ne. 384,160.

-bent rear end extending into an opening formed in one side of the latter directly above the fire-box. Intermediate its ends the discharge pi e is provided with a rotary fan 12 whic i is. t riven in any preferred manner, the walls of said pipe being distended at such end of the stach is' provided with a depending peripheral flange 13, which is set atan angle thereto and thus serves to direct the cinders, etc. into the pipes 9.

Disposed within the casing 8 is a main baille 14, which is likewise of frusto conthe inner face of the casing y pins, bolt-s, or similar means, the height of said baffle being alplproximately equal to that of the casin 1s baffle is formed of a series of paralle concentric horizontal rings 15 which are connected by vertical rods 16, to which said rings are disposed in space relation to each other, and set at an acute angle and mchned the Vsparks and cindersA which are deflected against said rings will pass through the openings between the rings into the cylindrical chamber between the latter and the inner face of the shell S.

.of supplemental baffles 17, 18, and 19, ar-

ranged one above the other, the two end baffles being in thc form of inverted conical vessels, while the central baille is frustoconical and is disposedop )ositely with respect to thelirst-mentionedba es; in other words, it-s lower base lies adjacent the base of the the apex of the baille 19. The several'supplemental battles are cach formed of sheet steel, and are provided with aseries of concentric, horizontal tongues 2O which are struck up therefrom, each tongue being formed of a series of arcuate sections, soA that it may be regardedns being approximately circular in sha ie. T he supplemental baffles are preferably secured irectly to the rods 16 w lich connect'4 the rings 15, and are'iitted in place with the lat-ter, in the stack; if preferred, however, they may be dis osed within the .rain baffle after the latter ias been inserted within the stack, and may be fastenedto the latter, or to the main baille. It will also be understood that the supplemental baffles Within the main baille is disposed a series i baille 17, while its upper base lies adjacent'.

' llcarried by the locomotive and havingits point to form the fan casing. The upper ical shape and is held in slaced relation to rings are secured at their u per edges. The

downwardly with respect to said rods, so that los may be formed of separate rings somewhat preventing the escape of theeiiiders, and the inner wall of the casing and extending downseveral bailies. may be frusto-pyrainidal or are inclined outwardly and upwardly, so that a practically continuous feed of heated gases conical, if preferred, and other changes in of the various parts may obviously c ianiber between the baille and the inner similar to those-which forni 4the main baille. In either construction, however, the tongues the s arks and cinders, in their upward passage roni the stack, will be deflected against the main baille, and will pass between the rings thereof. as above stated.

From the foregoing description, it will be a iparent that the cinders which have fallen t rough the main baille will be drawn by the action of the rotary fan' through the pipes 9 and 10, and finally discharged directly into the lire-bex ll, to be reheated, thus not only consequent danger of i'iies, but also cilecting and of partially consumed cindcrs to the iirebox.

In additioii'to the several deilectingbaffles alreadyr described, there may be'provided, if desirer, lan additional'baflle which is in the nature of .a series of rings .22 secured to the wardly towards the corresponding rings 15 which forin the niain baflle, the two sets of rings dovetailing, to a certain extent, as shown in Fig. 1. The several rings l5.a `d 22 and the flanges formed upon the 'supplba mental bailles are preferably perforatedfat facilitate the passage of the smoke and steanr through the arrest-er.

The casiing' of the arrester, as well as the pyramidal, rather than rusto conical, or

the form, zegand material, and disposition, e made under the' scope of the appended claims, as 1 the invention is not int-ended to be limited to the exact details of construction shown and describedf What is claimed, is, 1. A spark-arrester coni rising a casing; a ina-in baille disposed wit iin the casing in s aced relation thereto, to provide a vertical face of the casing, said baille .consisting of a series of spaced parallel rings connected to each other and arranged one above another;

and adapted to deflect the sparks through the openings between said rings.

.2, A spark-4 arrester, comprising an inshaped nia-in .baille disposed within the casing in spaced relation thereto, to provide a vertical chamber between the baille and the inner face of said casing, said baille consist# ing of a series of spaced concentric rings conanother; and a series of perforated sup lenient-al bailles disposedone above the ot er within the niain baille and adapted to deflect the sparks through the openings between said rings.

3. A-spark-arrester, comprising an inverted frusto conical casing; shaped main baille disposed within the cas ing in spaced relation thereto, to provide a vertical chamber between the baille and the inner face of said casing, said baille consist# ing oi a series of spaced concentric downa series of supplemental baiiles disposed one above the other within the inain baille, each of said supplemental bailles being provided with a series of outwardly inclined circular Qtongues adapted to deilect the sparks through 4the openings between said rings.

\`.4. A spark-arrester coin rising a casing; a. iiiain baille disposed wit iin the casing in spiacefd relation thereto, to rovide a vertical cia'niber between the ba e and the inner face ofthe casing, said baille consisting of a .series\'o-\\spaced parallel rings connected and a series of supplemental balles disposed J. P. CONWAY.

verted frusto conical casing; a similarly wardly inclined rings connect-ed to each other and arranged one above another; andl one above another within the main baille nected to each other and arranged one above a similarly A 

